Registered User
Reg pressure is adjusted using shims beneath the heavy coil spring. It's not very straightforward, and my calculations (from memory!) had indicated that as little as .25mm can have a large effect on the reg pressure. You do need to check this using an appropriate pressure testing setup.
Perhaps your gun came back fitted with a .22 "cigar" unit instead of the .177?
**WANTED**: WEBLEY PATRIOT MUZZLE END; Any Diana/Original mod.50 parts, especially OPEN SIGHTS
Registered User
Apparently it is the carbine, hence why the reg pressure is wrong:
http://www.airgunbbs.com/showthread....7-cal-full-kit
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.
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